Soil Moisture Humidity Sensor Module

• This is a summary of the moisture sensor can be used to detect the moisture of the soil, when the soil is dry , the module outputs a high level , whereas the output low. Using this sensor make an automatic watering system , so that your garden plants need people to manage.
• Adjustable sensitivity ( shown in blue digital potentiometer adjustment ).
• Operating Voltage 3.3V-5V.
• Module Dual Output mode , a simple digital output , analog output more accurate.
• With fixed bolt hole for easy installation.
• Small PCB board size: 3cm * 1.6cm.
• Power indicator ( red ) and the digital switch output indicator ( green ).
• Using LM393 comparator chip, stable.
• VCC external 3.3V-5V
• GND GND External
• DO small board digital output interfaces ( 0 and 1 )
• AO small board analog output interface

Instructions:

• A soil moisture and humidity module most sensitive to the environment , usually used to detect soil moisture.
• Modules in the soil moisture reach the set threshold , DO port output high when soil moisture exceeds a set threshold, the module D0 output low.
• Digital outputs D0 small plates can be directly connected with the microcontroller through the microcontroller to detect high and low , thereby detecting soil moisture.
• Small plates digital output DO OUR relay module can directly drive the buzzer module , which can be composed of a soil moisture alarm equipment.
• Small plates AO analog output modules can be connected and AD through the AD converter , you can get a more accurate value of soil moisture.